---
_id: '3482'
abstract:
- lang: eng
text: AMPA- and NMDA-type glutamate receptors (AMPARs and NMDARs) mediate excitatory
synoptic transmission in the basal ganglia and may contribute to excitotoxic injury.
We investigated the functional properties of AMPARs and NMDARs expressed by six
main types of basal ganglia neurons in acute rat brain slices (principal neurons
and cholinergic interneurons of striatum, GABAergic and dopaminergic neurons of
substantia nigra, globus pallidus neurons, and subthalamic nucleus neurons) using
fast application of glutamate to nucleated and outside-out membrane patches, AMPARs
in different types of basal ganglia neurons were functionally distinct. Those
expressed in striatal principal neurons exhibited the slowest gating (desensitization
time constant τ = 11.5 msec, 1 mM glutamate, 22°C), whereas those in striatal
cholinergic interneurons showed the fastest gating (desensitization time constant
τ = 3.6 msec). The lowest Ca2+ permeability of AMPARs was observed in nigral dopaminergic
neurons (P(CA)/P(NA) = 0.10), whereas the highest Ca2+ permeability was found
in subthalamic nucleus neurons (P(Ca)/P(Na) = 1.17). NMDARs of different types
of basal ganglia neurons were less variable in their functional properties; those
expressed in nigral dopaminergic neurons exhibited the slowest gating (deactivation
time constant of predominant fast component τ1 150 msec, 100 μM glutamate), and
those of globus pallidus neurons showed the fastest gating (τ1 = 67 msec). The
Mg2+ block of NMDARs was similar; the average chord conductance ratio g(+60mv)/g(+40mV)
was 0.18-0.22 in 100 μM external Mg2+. Hence, AMPARs expressed in different types
of basal ganglia neurons are markedly diverse, whereas NMDARs are less variable
in functional properties that are relevant for excitatory synoptic transmission
and neuronal vulnerability.
acknowledgement: "This work was supported by Deutsche Forschungsgemeinschaft Grant
BE1859 to T.B. and SFB505/C5 to P.J. We thank Mrs. B. Plessow-Freudenberg for help
with the immunocytochemistry, Dr. M. Ha¨usser for advice concerning the \r\n reparation
of midbrain slices, and Drs. J. Bischofberger, G. B. Landwehrmeyer, and M. Martina
for critically reading this manuscript."
article_processing_charge: No
article_type: original
author:
- first_name: Thomas
full_name: Götz, Thomas
last_name: Götz
- first_name: Udo
full_name: Kraushaar, Udo
last_name: Kraushaar
- first_name: Jörg
full_name: Geiger, Jörg
last_name: Geiger
- first_name: Joachim
full_name: Lubke, Joachim
last_name: Lubke
- first_name: Thomas
full_name: Berger, Thomas
last_name: Berger
- first_name: Peter M
full_name: Jonas, Peter M
id: 353C1B58-F248-11E8-B48F-1D18A9856A87
last_name: Jonas
orcid: 0000-0001-5001-4804
citation:
ama: Götz T, Kraushaar U, Geiger J, Lubke J, Berger T, Jonas PM. Functional properties
of AMPA and NMDA receptors expressed in identified types of basal ganglia neurons.
Journal of Neuroscience. 1997;17(1):204-215. doi:10.1523/JNEUROSCI.17-01-00204.1997
apa: Götz, T., Kraushaar, U., Geiger, J., Lubke, J., Berger, T., & Jonas, P.
M. (1997). Functional properties of AMPA and NMDA receptors expressed in identified
types of basal ganglia neurons. Journal of Neuroscience. Society for Neuroscience.
https://doi.org/10.1523/JNEUROSCI.17-01-00204.1997
chicago: Götz, Thomas, Udo Kraushaar, Jörg Geiger, Joachim Lubke, Thomas Berger,
and Peter M Jonas. “Functional Properties of AMPA and NMDA Receptors Expressed
in Identified Types of Basal Ganglia Neurons.” Journal of Neuroscience.
Society for Neuroscience, 1997. https://doi.org/10.1523/JNEUROSCI.17-01-00204.1997.
ieee: T. Götz, U. Kraushaar, J. Geiger, J. Lubke, T. Berger, and P. M. Jonas, “Functional
properties of AMPA and NMDA receptors expressed in identified types of basal ganglia
neurons,” Journal of Neuroscience, vol. 17, no. 1. Society for Neuroscience,
pp. 204–215, 1997.
ista: Götz T, Kraushaar U, Geiger J, Lubke J, Berger T, Jonas PM. 1997. Functional
properties of AMPA and NMDA receptors expressed in identified types of basal ganglia
neurons. Journal of Neuroscience. 17(1), 204–215.
mla: Götz, Thomas, et al. “Functional Properties of AMPA and NMDA Receptors Expressed
in Identified Types of Basal Ganglia Neurons.” Journal of Neuroscience,
vol. 17, no. 1, Society for Neuroscience, 1997, pp. 204–15, doi:10.1523/JNEUROSCI.17-01-00204.1997.
short: T. Götz, U. Kraushaar, J. Geiger, J. Lubke, T. Berger, P.M. Jonas, Journal
of Neuroscience 17 (1997) 204–215.
date_created: 2018-12-11T12:03:34Z
date_published: 1997-01-01T00:00:00Z
date_updated: 2022-08-22T08:48:45Z
day: '01'
doi: 10.1523/JNEUROSCI.17-01-00204.1997
extern: '1'
external_id:
pmid:
- '8987749'
intvolume: ' 17'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6793708/
month: '01'
oa: 1
oa_version: Published Version
page: 204 - 215
pmid: 1
publication: Journal of Neuroscience
publication_identifier:
issn:
- 0270-6474
publication_status: published
publisher: Society for Neuroscience
publist_id: '2905'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Functional properties of AMPA and NMDA receptors expressed in identified types
of basal ganglia neurons
type: journal_article
user_id: ea97e931-d5af-11eb-85d4-e6957dddbf17
volume: 17
year: '1997'
...